Filing rack for holding prints



' April 8, 1958 Filed May 18. 1953 T. MARTIN 2,829,417

FILING RACK FOR HOLDING PRINTS 2 Sheets-Sheet l INVENTOR. 7%0/77 asMar/9'0.

April 8, 1958 T. MARTiN 2,829,417

FILING RACK FOR HOLDING PRINTS Filed May 1a. 1953 Y 2 Shets-Sheet 2INVENTOR.- 750/7705 War/9h.

2,829,417 Ice Patented Apia-8,1958

FILING RACK FOR HOLDING Thomas Martin, Pittsburgh, Pa. Application May18, 1953, Serial No. 355,618

3 Claims. (Cl. 24252) helical spring 22 thereon, one end 23 of whichbears against the rear face 5 of the strip 1 and the other end 24 bearsagainst the operating portion of the clamp 11 to force its clamping edgeagainst the face 5 of the strip.

When the abutment 9 of the key 10 is placed in the seat 8 between theflange 7 and the rolled edge 6, the stem 14 can be placed against theoperating end 25 of the clamp when the latter is depressed toward thesurface 5 of the strip. This creates an over dead center position of thekey relative to its seated abutment 9 causing the latter to hold theclamp 11 in its open position as illustrated in Fig. 4. The end 26 ofthe key 10 need only beraised to allow the abutment 9 to move around theare 6 and thus permit the operating end of the clamp to be released fromits'locked position. During the lockby pressing one or more clamps bythe pressure of one or more clamps to bind the sheets by friction andeliminate the need to perforate the same and also the provision of anopen flange along the other edge of the strip to also stiffen the sameand provide a locking abutment for an over center locking key on thissupport for the binding strip in a rack.

Other objects and advantages appear hereinafter in the followingdescription and claims.

The accompanying drawings show for the purpose of exemplificationwithout limiting the invention or claims thereto certain practicalembodiments illustrating the principles of this invention wherein:

Fig. 1 is a view in elevation of the front face of a file binder.

. Fig. 2 is an enlarged end view of the file binder shown in Fig. 1.

Fig. 3 is an enlarged perspective view of the file binder and key.

Fig. 4 is a sectional view showing the key holding a clamp on the filebinder in its open position.

Fig. 5 is an enlarged perspective view illustrating the file binderabout to be placed on a hanger.

Fig. 6 is a view illustrating a hanger in its extended position having aseries of file binders supported thereon.

Fig. 7 is a view similar to Fig. 6 showing the hanger in its retractedposition.

Referring to the drawings, the binder as illustrated is shown in Fig. 1as a strip member 1 made of metal, plastic or other suitable materialhaving one longitudinal edge 2 folded back on itself to form thecontinuous round bead 3 that extends longitudinally of the strip andforms the shoulder 4 adjacent the front face 5 of the strip.

The opposite longitudinal edge of the strip is likewise rolled towardits rear face 5 to form the hook or channel member 6 having an inturnedflange 7 that defines 'a fulcrum seat 8. As illustrated in Fig. 4 theseat 8 is for the purpose of receiving the rounded abutment foot or end9 on the key 10 which is employed to hold the clamp 11 in its openposition as shown in Fig. 4. As illustrated in Fig. 3 the key 10 has acylindrical bend or bight section 12 which bears against the innerarcuate surface 13 of the rolled edge 6 on the strip. The stem orstanding portion 14 of the key provides a slight reversed. curve fromthe bight portion 12. as illustrated in Figs. 3 and 4.

The strip 1 has parallel spaced cars 17 formed from and struck out ofthe strip. A pair of oppositely disposed depending ears 20 are providedon the clamp member. The cars 17 and 20 are provided with alignedopenings to receive the pivot rod 21 which passes through the same andhas riveted heads on the ends thereof to prevent it from accidentalremoval. The pivot pin 21 has a ing and the unlocking-action of the key10 against the operating end of the clamp, the curved bight portion 12of the key rides over the surface of the operating end of the clampallowing it to slowly recede from the rear surface 5 of the strip. 1

When the clamp is released as shown in Figs. 1 and 2, its clamping edge27 engages the rear surface 5 of the strip 1 in spaced relation from theshoulder 4 formed by the bead 3. Since the hinge of the clamp isinwardly spaced from the clamping edge 27 the sheets or prints that areheld by this binder may be slid under the open clamp until they engageagainst the cars 17 and 20 which function as stops limiting the upwardinsertion of the prints. When the keys release the clamps and allowtheir clamping edges 27 to exert pressure on the rearmost print, theprints in the stack so clamped are all required to fold over the bead 3owing to the fact that the clamping edge 27 is spaced from the shoulder4 formed by the head 3.

This curvature created in the prints increases the clamping action overthat of any other similar type of clamp. The prints are required to bendover a bead or abutment and then pass down to the surface 5 of the stripthrough a reversed curve and under the clamping surface. Any pull on aprint or sheet that is stored in this manner has a tendency to raise theclamp and thus apply a force against the spring pressure. Thismaterially increases the clamping action Without increasing the springpressure of the clamp or Without providing serrated or piercing orroughened surfaces that are supposed to increase the friction of theclamp.

The back face 28 of the strip 1 has a pair of curved spaced ears 30 forthe purpose of holding a card as illustrated at 31 in Figs. 6 and'7carrying indicia to indicate the class or character of prints in theparticular binder.

The ends of each binder may be supported on the pins 32 projecting fromthe opposite arms 33 of the U shaped frame member 34. The ends of thearms 33 are attached to the pivot members 35, the other ends of whichare secured to the panel member 36. A panel member 36 may be secured tothe wall, desk or even a mobile rack. The sides of the frame member 34may be supported by the hinged bracket members 37, one on each of thearms 33, which bracket may be broken intermediate of its ends for thepurpose of allowing the arms 33 to swing to a vertical position asillustrated in Fig. 7.

When the U bar of the frame is pulled upwardly the brackets 37 may belocked in their extended position byan overcenter locking arrangementwell known in the art, for the purpose of extending the frame as shownin Fig. 6. It is preferable that the brackets 37 prevent the frame 34from rising to the horizontal position so as to atford an opportunity ofreading each of the tabs 31when the frame is in its extended position asshown in Fig. 6 or when in its folded position as shown in Fig. 7. The

rows of inwardly projecting pins 32 in each of the arms 33 are mountedin pairs oppositely disposed from one another so as to providea hingedsupport for each binder at uniform distances from each other. Thisdisstance permits the prints of each binder to be readily withdrawn andinserted when the frame is extended as shown in Fig. 6, but when theframeispivoted as shown in "Fig. 7 the binders pivot on thepins 32 andpermit their prints to remain in the vertical position in closeproximity to each other. When the frame is in the vertical or retractedposition the prints ofone binder may readily be removed but it is moredifiicult to reinsertthem. It isunderstood that the phraseology employedherein is for the purpose of description and not limitation, and it isnot intended to limit the invention claimed herein beyondtherequirements of the prior art.

I claim:

VI. A binder for holding sheets comprising a strip having front and backfaces, one marginal edge ofsaid strip having a straight ridgerounded tosaid front face of said strip, a plurality of spaced clamp means carriedon the front face of said strip, each clamp means having a spring biasedmovable clamp jaw the clamping edge of which is parallel with and spacedfrom said roundedridge to engage and bend sheets over said roundedridge, a frame with opposed inwardly projecting pins, and a hook shapedfiange along the other marginal edge of said strip tordrop over saidpins and hingedly support said binder on said frame and permitthe'sheet'to pivotally hang uniformly from said frame.

2. The structure of claim 1 characterized in that said hook shapedflange has a curved portion with an inturned abutment to provide a seat,and a key having a bend terminating in an end to fit the seat with thekey end engaging said abutment, and astern on said key lying againstsaid clamp jaw to hold it inits open position.

3. The structure of claim 1 which also includes hinge means on saidframe to hingedly support said frame on a wall to uniformly suspend thesheet from said frame and spaced from said wall.

References Cited in the file of this patent UNITED STATES PATENTSGermany Oct. 24, 1935

